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What is the formula for total current in a series circuit?
Current = (Voltage across the circuit) divided by (Total resistance of the circuit). The current is the same at every point in the series circuit.
What value must be known to determine the current in a complex circuit?
To determine the current in a complex circuit, you must know the total voltage supplied by the power source and the total resistance of the circuit. Using Ohm's Law (I = V/R), where I is the current, V is the voltage, and R is the resistance, you can calculate the current flowing through the circuit. Additionally, if the circuit is alternating current (AC), knowing the impedance is also essential.
What determines total power in A series circuit?
In a series circuit, total power is determined by the voltage across the entire circuit and the total current flowing through it. The total power (P) can be calculated using the formula P = V_total × I_total, where V_total is the sum of the voltages across all components and I_total is the same for each component in the series. Additionally, the total resistance (R_total) of the circuit affects the current, as it is given by Ohm’s Law (I = V/R). Thus, the interplay between voltage, current, and resistance dictates the total power consumed.
If one branch of a parallel circuit has high resistance?
If one branch of a parallel circuit has high resistance, it will draw less current compared to branches with lower resistance. This means that most of the total current will flow through the lower-resistance branches. Consequently, the voltage across all branches remains the same, but the overall current provided by the power source will be affected, potentially resulting in decreased total current in the circuit.
What is the total opposition to a current flow in an AC circuit with both resistance and reactance?
Resistance
How is the resistance of a resister calculated?
ohms law calculation for a series circuit - Total Resistance = Total Voltage divided by Total Current
What is the formula for total current in a series circuit?
Current = (Voltage across the circuit) divided by (Total resistance of the circuit). The current is the same at every point in the series circuit.
What value must be known to determine the current in a complex circuit?
To determine the current in a complex circuit, you must know the total voltage supplied by the power source and the total resistance of the circuit. Using Ohm's Law (I = V/R), where I is the current, V is the voltage, and R is the resistance, you can calculate the current flowing through the circuit. Additionally, if the circuit is alternating current (AC), knowing the impedance is also essential.
If one branch of a parallel circuit has high resistance?
If one branch of a parallel circuit has high resistance, it will draw less current compared to branches with lower resistance. This means that most of the total current will flow through the lower-resistance branches. Consequently, the voltage across all branches remains the same, but the overall current provided by the power source will be affected, potentially resulting in decreased total current in the circuit.
What is the current that flows from and back to the power supply in a parallel circuit called?
The current that flows from and back to the power supply in a parallel circuit is called the total current. It splits into different branches based on the resistance of each branch but remains constant throughout the circuit.
What is describe as the total opposition to current flow in a circuit?
Total resistance.
When an ammeter is connected to measure current circuit current will decrease sightly because R total decreases after the meter is inserted?
Current will be decreased because of the resistance of the ammeter added to the circuit's resistance. In other words total resistance increases.
Describe how a change in resistance would affect the current in a circuit?
As long as the voltage between the ends of the circuit remains constant, the current through the circuit is inversely proportional to the total effective resistance of the circuit.
A 120 ohm resistor a 60 ohm resistor and a 40 ohm resistor are connected in parallel to a 120 volt power source. What is the current running through the entire circuit?
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What is the total opposition to a current flow in an AC circuit with both resistance and reactance?
Resistance
As the resistance in a series circuit is decreased the amount of current in the circuit increases or decreases?
Increases the total resistance
Do additional resistors affect current in a series circuit?
Yes, additional resistors affect current in a series circuit by increasing the total resistance, which decreases the total current.
